generate barcode in asp.net c# MAKING A CONNECTION in Font

Maker Data Matrix ECC200 in Font MAKING A CONNECTION

CHAPTER 8 MAKING A CONNECTION
Drawing Data Matrix In None
Using Barcode creator for Font Control to generate, create Data Matrix 2d barcode image in Font applications.
www.OnBarcode.com
Generate PDF-417 2d Barcode In None
Using Barcode generation for Font Control to generate, create PDF-417 2d barcode image in Font applications.
www.OnBarcode.com
A little variation on local port forwarding, as just seen, is remote port forwarding. If you want to try it, forward all connections on a remote port at a remote server to a local port on your machine. To do this, use the -R option as in the following example: linda@AMS:~> ssh -R 4444:AMS:110 linda@ATL In this example, user linda connects to host ATL (see the last part of the command). On this remote host, port 4444 is addressed by using the construction -R 4444. This remote port is redirected to port 110 on the localhost. As a result, anything going to port 4444 on ATL is redirected to port 110 on AMS. This example would be useful if ATL were the client and AMS were the server running a POP mail server that user linda wants to connect to. Another very useful instance is when the host you want to forward to cannot be reached directly, perhaps because it is behind a firewall. In this case, you can establish a tunnel to another host that is reachable with SSH. Imagine that in Figure 8-6, the host SLC is running a POP mail server that our user linda wants to connect to. This user would use the following command: linda@AMS:~> ssh -L 4444:SLC:110 linda@ATL In this example, linda forwards connections to port 4444 on her localhost to server ATL that is running SSH. This server, in turn, forwards the connection to port 110 on server SLC. Note that, in this scenario, the only requirement is that ATL has the SSH service activated; no sshd is needed on SLC for this to work. Also note that there is no need for host AMS to get in direct contact with SLC because that s what ATL is used for. In these examples, you learned how to use the ssh command to accomplish port forwarding, but this isn t the only way of doing it. If a port-forwarding connection needs to be available all the time, you can put it in the ssh configuration file at the client computer. Put it in .ssh/config in your home directory if you want it to work for your user account only, or put it in /etc/ssh/ssh_config if you want it to apply for all users on your machine. The parameter that should be used as an alternative to ssh -L 4444:ATL:110 would be LocalForward 4444 ATL:110.
GS1-128 Printer In None
Using Barcode drawer for Font Control to generate, create EAN 128 image in Font applications.
www.OnBarcode.com
Making Barcode In None
Using Barcode drawer for Font Control to generate, create Barcode image in Font applications.
www.OnBarcode.com
Summary
Print Barcode In None
Using Barcode encoder for Font Control to generate, create Barcode image in Font applications.
www.OnBarcode.com
Code 128A Creation In None
Using Barcode generator for Font Control to generate, create Code 128 Code Set A image in Font applications.
www.OnBarcode.com
In this chapter you learned how to set up a network connection. First, we explored how an IP address is assigned to a network interface card. We covered IPv4 addresses as well as IPv6 addresses. Following that, you read how to troubleshoot a network connection using basic commands such as ping and traceroute, or advanced tools such as nmap and Wireshark. In the last part of this section, you learned how to create a remote session with SSH. In the next , , chapter, you ll find out how to set up networking services such as NTP DHCP and DNS on your server.
Printing Code 39 Extended In None
Using Barcode encoder for Font Control to generate, create USS Code 39 image in Font applications.
www.OnBarcode.com
OneCode Creation In None
Using Barcode encoder for Font Control to generate, create OneCode image in Font applications.
www.OnBarcode.com
CHAPTER
Data Matrix ECC200 Decoder In Visual Studio .NET
Using Barcode scanner for VS .NET Control to read, scan read, scan image in .NET framework applications.
www.OnBarcode.com
Encode DataMatrix In None
Using Barcode generation for Word Control to generate, create Data Matrix 2d barcode image in Office Word applications.
www.OnBarcode.com
Configuring Network Infrastructure Services Using DNS, DHCP, and NTP
Encoding GS1 128 In None
Using Barcode creator for Office Excel Control to generate, create UCC-128 image in Excel applications.
www.OnBarcode.com
Scanning Barcode In .NET
Using Barcode scanner for VS .NET Control to read, scan read, scan image in .NET applications.
www.OnBarcode.com
inux servers are often used to configure services that help make networking happen. These services include DNS for name resolution, DHCP for IP address configuration, and NTP for time services. In this chapter, you ll read how to configure them. You ll also read how to enable some common Linux services using xinetd.
Code 128A Drawer In VB.NET
Using Barcode creator for .NET framework Control to generate, create Code 128B image in .NET applications.
www.OnBarcode.com
Make Barcode In .NET Framework
Using Barcode generation for Reporting Service Control to generate, create Barcode image in Reporting Service applications.
www.OnBarcode.com
Configuring DNS
USS-128 Decoder In Visual C#.NET
Using Barcode scanner for .NET framework Control to read, scan read, scan image in VS .NET applications.
www.OnBarcode.com
Barcode Encoder In Objective-C
Using Barcode creation for iPad Control to generate, create Barcode image in iPad applications.
www.OnBarcode.com
As you would expect, IP (Internet protocol) is used for all communications on the Internet. This protocol specifies unique IP addresses that computers use to talk to one another. To contact a computer, you just need to know its IP address. One of the most important reasons why the domain name system (DNS) was developed is because computers work better with numbers than humans do, and humans tend to prefer names. So, DNS translates IP addresses to DNS names (and back from DNS names to IP addresses). In this chapter, you ll learn how to configure DNS on Ubuntu Server.
Encode PDF-417 2d Barcode In None
Using Barcode encoder for Online Control to generate, create PDF 417 image in Online applications.
www.OnBarcode.com
Barcode Printer In None
Using Barcode creation for Office Excel Control to generate, create Barcode image in Office Excel applications.
www.OnBarcode.com
UPC-A Supplement 2 Maker In Objective-C
Using Barcode encoder for iPad Control to generate, create UPC Code image in iPad applications.
www.OnBarcode.com
Encoding Data Matrix In Java
Using Barcode printer for Java Control to generate, create Data Matrix image in Java applications.
www.OnBarcode.com
Copyright © OnBarcode.com . All rights reserved.